2013

Monteith, the actor who shot to fame in the hit TV series "Glee" but was beset by addiction struggles so fierce that he once said he was lucky to be alive, was found dead in a Vancouver hotel room on July 13, 2013. He was 31.

Credit: Frazer Harrison/Getty Images

2013

Lea Michele and Cory Monteith arrive at the 19th Annual Screen Actors Guild Awards held at The Shrine Auditorium on Jan. 27, 2013, in Los Angeles.

2013

In April, Monteith admitted himself to a treatment facility for "substance addiction" and asked for privacy as he took steps toward recovery, a representative said at the time.

It was not Monteith's first time in rehab. He received treatment when he was 19 and had previously talked about his addiction struggles, saying he had a serious problem and took just "anything and everything."

Credit: Frederick M. Brown/Getty Images

"Glee"

Cory Monteith starred in "Glee" as a high school football player who puts his status and popularity at risk to join the glee club and its outcast members. The show, with its pop music-based song-and-dance numbers and high-profile guest stars including Gwyneth Paltrow, became an immediate hit and made stars of its relatively unknown cast.

Pictured at left with Monteith are Kevin McHale, Mark Salling and Chord Overstreet.

"Glee"

From left: Chord Overstreet, Kevin McHale, Cory Monteith and Lea Michele in a scene from "Glee: The 3D Concert Movie."

Credit: 20th Century Fox

2011

Actor Cory Monteith speaks onstage at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on Sept. 24, 2011, in Las Vegas, Nevada.

According to his series' biography, Monteith was born in Calgary, Alberta, and moved to Vancouver Island as a child. Monteith's TV credits included roles on the series "Kaya" and "Kyle XY," and guest appearances on "Smallville," "Supernatural," "Stargate," "Flash Gordon" and "Interns." His film credits included "Final Destination 3," "The Invisible," "Deck the Halls" and "Whisper."